Adjustable Testing Tool and Method of Use
First Claim
1. A method for testing a subterranean formation penetrated by a wellbore, the method comprising:
- positioning the testing tool in the wellbore, the testing tool comprising a tool body, a plurality of packer elements spaced apart from one another along the longitudinal axis of the tool body, and at least one port on the tool body located between two of the plurality of packer elements;
selecting in situ the length of an interval of the wellbore to be sealed;
extending at least two packer elements into sealing engagement with the wellbore wall;
sealing the interval of the wellbore with the two packer elements; and
flowing fluid between the sealed interval and the testing tool through the port.
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Accused Products
Abstract
Methods and systems for testing a subterranean formation penetrated by a wellbore are provided. A testing tool has a plurality of packers spaced apart along the axis of the tool, and at least a testing port. The testing tool is positioned into the wellbore and packers are extended into sealing engagement with the wellbore wall, sealing thereby an interval of the wellbore. In some embodiments, the wellbore interval sealed between two packers is adjusted downhole. In one embodiment, the location of the testing port is adjusted between two packers. The methods may be used to advantage for reducing the contamination of the formation fluid by fluids or debris in the wellbore.
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Citations
29 Claims
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1. A method for testing a subterranean formation penetrated by a wellbore, the method comprising:
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positioning the testing tool in the wellbore, the testing tool comprising a tool body, a plurality of packer elements spaced apart from one another along the longitudinal axis of the tool body, and at least one port on the tool body located between two of the plurality of packer elements; selecting in situ the length of an interval of the wellbore to be sealed; extending at least two packer elements into sealing engagement with the wellbore wall; sealing the interval of the wellbore with the two packer elements; and flowing fluid between the sealed interval and the testing tool through the port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for testing a subterranean formation penetrated by a wellbore, the method comprising:
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positioning a testing tool in the wellbore, the testing tool comprising a tool body, a plurality of packer elements spaced apart from one another along the longitudinal axis of the tool body, and at least one port on the tool body located between two of the plurality of packer elements; extending at least two packer elements into sealing engagement with the wellbore wall; sealing a first interval of the wellbore; flowing fluid between the first sealed interval and the testing tool through the port; extending a third packer element into sealing engagement with the wellbore wall; and sealing a second interval of the wellbore. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for testing a subterranean formation penetrated by a wellbore, the method comprising:
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adjusting a port on a testing tool, the testing tool comprising a tool body, a plurality of packer elements spaced apart from one another along the longitudinal axis of the tool body, and at least a port on the tool body located between two of the plurality of packer elements; positioning the testing tool in the wellbore; extending at least two packer elements into sealing engagement with the wellbore wall; sealing an interval of the wellbore; and draining fluid from the sealed interval into the testing tool through the adjusted port. - View Dependent Claims (20, 21, 22, 23)
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24. A system for testing a subterranean formation penetrated by a wellbore, the system comprising:
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a testing tool comprising a tool body, a plurality of packer elements spaced apart from one another along the longitudinal axis of the tool body, and at least a port on the tool body located between two packer elements; and a snorkel assembly adaptable on the testing tool comprising a snorkel port and a fluid communication between the port on the tool body and the snorkel port, the snorkel port and the tool port being substantially offset from each other. - View Dependent Claims (25, 26, 27, 28, 29)
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Specification